13123031 has 8 divisors (see below), whose sum is σ = 14034384. Its totient is φ = 12227200.

The previous prime is 13123021. The next prime is 13123039. The reversal of 13123031 is 13032131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13123031 is a prime.

It is a super-2 number, since 2×13123031² = 344427885253922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13122997 and 13123015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2105 + ... + 5538.

It is an arithmetic number, because the mean of its divisors is an integer number (1754298).

Almost surely, 2^13123031 is an apocalyptic number.

13123031 is a deficient number, since it is larger than the sum of its proper divisors (911353).

13123031 is a wasteful number, since it uses less digits than its factorization.

13123031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7761.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 13123031 is about 3622.5724285375. The cubic root of 13123031 is about 235.8729026933.

Adding to 13123031 its reverse (13032131), we get a palindrome (26155162).

The spelling of 13123031 in words is "thirteen million, one hundred twenty-three thousand, thirty-one".